Hunter I-40-04-SS-R 4 in. Stainless Steel Rotor with Check Valve

Compact, corrosion-resistant rotor designed for reclaimed-water and commercial irrigation applications. The Hunter I-40-04-SS-R pairs a stainless-steel riser with a precision gear-drive and user-friendly adjustments for reliable, low-maintenance performance.

• Durable stainless-steel riser: Stainless construction resists corrosion in reclaimed-water and coastal installations while providing long-lasting mechanical strength.
• Adjustable arc 50–360°: Through-the-top arc adjustment and Quick Check mechanism make installation and fine-tuning fast and accurate.
• Factory-installed check valve: Built-in anti-drain valve prevents low-point drainage and reduces the risk of line contamination.
• Water-lubricated gear drive: Smooth, efficient operation reduces wear and extends service life for frequent-use zones.
• Compact pop-up dimensions: 4 in. pop-up height, 7-7/8 in. overall height, 2 in. exposed diameter and 1 in. NPT inlet for straightforward retrofit and new installs.
• Nozzle and option flexibility: Factory-equipped with six nozzle ports; compatible with a range of nozzle sizes for precise precipitation rates and radius control.

Engineered for turf, sports fields, and commercial landscapes where reclaimed-water compatibility and durable materials are required. The I-40-04-SS-R delivers reliable coverage with easy service access and proven Hunter features to simplify installation and maintenance.